Loom-temple



(No Model.)

J. E. PREST.

LOOM TEMPLE.

No. 407,032. Patented July 16, 1889.

N. PETERS, HMoLKhograpber, Washlr glm DC.

UNITED. STATES JOHN E. PREST, OF NORTIIBRIDGE, MASSACHUSETTS.

PATENT OFFICE.

LOOM-TEMPLE.

SPECIFICATION forming part of Letters Patent No. 407,032, dated July 16,1889.

Application filed September 17, 1888. Serial No. 285,586. (No model.)

To aZZ whom it may concern:

Be it known that I, JOHN PRIEST, of North-' bridge, in the county ofVorcester, State of Massachusetts, have invented a certain new anduseful Improvement in Loom-Temples, of which the following is adescription sufficiently full, clear, and exact to enable any personskilled in the art or science to which said invention a ppertains tomake and use the same, reference being had to the accompanying drawings,forming part of this specification, in which- Figure l is an isometricalperspective view of aloom-temple embodying my improvement, the roll andcap being removed; Fig. 2, a vertical transverse section taken 011 linea a; in Fig. 1, and showing the arm, cap, and a portion of the bracket;Fig. 3, a sectional view designed to show a modification of theimprovement; Fig. 4-, a perspective view; Fig. 5, a sectional View usedfor reference in describing the invention shown in Figs. 1 and 2; Fig.6, a transverse section showing an alternative form for the bearing;Fig. 7, a side elevation showing the catch engaged with the notch in thebracket.

Like letters and figures of reference indicate corresponding parts inthe different figures of the drawings.

In the drawings, A represents the supporting-plate, F the frame of thetemple, B the bracket mounted in the frame, C the arm, I) the head-stockin which the roll (not shown) is mounted, and E the spring, these partsbeing all of the ordinary form and construction, excepting ashereinafter pointed out.

As my invention relates more especially to the formation of the arm andthe method of mounting and securing it in the bracket, and to the catchfor securing the bar, it is not deemed essential to particularlydescribe the other parts.

The frame F is mounted 011 the plate or bracket A and is adjustablelaterally thereon in the usual manner, being retained in position by anut and set-screw t and provided on one face with a longitudinaldovetail 71..

The bracket B is provided with a dovetail groove adapted to receive thedovetail 7L on said frame, the parts being fitted so that the bracketmay be moved or adjusted longitudinally on said frame. A bolt 1',disposed in a slot Z in the bracket and a corresponding slot 1) in theframe, is provided with a nut t" at one end, and holds said bracket inposition thereon.

The arm O is secured in its bearing in the bracket 13 by means of aclamp II; but when the arm is formed square in cross-section andarranged with two of its square sides crossing the joint between thebracket and clamp, as shown in Figs. 4 and 5, no means are afforded forcompensating for the wear of the upper and lower surfaces of the arm inits bearing in the bracket, and hence, owing to the looseness and playof the arm in the bracket, the head-stock is liable to fall into animproper position and result in causing the temple to work imperfectly.

My invention is designed to obviate this objection or difficulty; and tothat end I make the body of the arm 0 triangular in crosssection, asshown in Figs. 1 and 2, and construct its bearing in'the bracket B tocorrespond therewith, the arm being arranged as fully shown in Fig.2-that is, with the angles of the triangle at the top, bottom, and oneside of said bearing, so that as the arm and bearing wear away in usethe wear may be readily compensated for and the headstock D always keptin proper position by turning in the screws f, thereby causing the armto wedge in the bearing in a manner that will be readily understood byall conversant with such matters without a more explicit description.

If preferred, the arm may be square in cross-section at the hearing, asshown in Fig.

3, with substantially the same results, in which case a triangularportion of the bearing is formed in the bracket and a correspondingtriangular portion in the clamp, the two when united constituting abearing which is square in cross-section and having its angles at thetop, bottom, and sides, respectively.

In Fig. 6 the arm is square, and the bracket, which has a horizontalflange a, embraces two adjacent sides of the arm, while the clamp II,which is made angular in form, embraces the opposite adjacent sides, twoopposite angles T00 of the arm being opposite the angles of the bracketand clamp, and the other two opposite angles of the arm being oppositethe joints between the clamp and bracket.

The bar at the rear of its angular portion is preferably round, as shownat m, the round portion being fitted to slide in a bearing g at the endof the bracketB, and disposed on said bar there is a coiled spring E andan annular plate K, provided with a projection d, adapted to engageanotch .2, formed in the upper edge of the bracket B between its angularbearing and the bearing g, said plate and its projection constituting acatch for securing or looking the bar when it is pushed inward as far aspossible in the direction of the bearing g.

The plate K is fitted to turn on the rounded portion m of the bar 0, andwhen said bar is pushed inward the spring E, which abuts against saidplate and the bearing will be compressed until the plate is opposite thenotch z, in which position the plate may be partially revolved and theprojection 01 caused to engage the notchjz, thereby locking the bar. Thebar C maybe provided with a stoppin 5 just beyond the plate K to preventthe latter from sliding on the bar.

Having thus described my invention, what I claim is 1. In a loom-temple,the arm 0, carrying the head-stock D, the bracket B, clamp H, and meansfor securing said clamp, a portion of said arm being angular incross-section and arranged with an angle at its side, and said bracketbeing provided with a corresponding angular bearing for receiving theangular portion of the arm, whereby the wear of the arm in the bearingmay be readily compensated for by tightening the clamp, substantially asdescribed.

2. The arm C, carrying the head-stock D and provided with the spring E,the bracket B, clamp H, and screws f, a portion of said arm beingangular in cross-section and fitted to work in a corresponding bearingin said bracket, said arm being so arranged that its corners or angleswill stand at the top, bottom, and side, respectively, of the bearing,

substantially as and for the purpose set forth.

3. In a loom-temple, the plate A, carrying the bracket B, provided withthe clamp H, and the arm 0, carrying the head-stock D and provided withthe spring E, a portion of the body of said arm being triangular incrossseotion and fitted to work in a corresponding bearing in saidbracket, substantially as described.

4. In a loom-temple, the bar 0, provided with the spring E, the plate K,mounted on said, ,bar and provided with the projection 56, and thebracket B, provided with the notch z, substantially as and for thepurpose set forth.

5. In a loom-temple, the combination of the supporting-plate A, theframe F, provided with the dovetail h and slot 1, the clamping devicefor adjustably connecting said frame and plate, the bracket B, providedwith the slot p and a dovetail groove adapted toengage the dovetail onsaid frame, and a clamp ing-bolt disposed in said slots, whereby thebracket may be longitudinally adj usted and secured in position on saidframe, substantially as described.

JOHN E. PREST. \Vitnesses:

O. M. SHAW, E. M. SPINNEY.

